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Finding the Fourth Proportional to 11,040.92, 15,207.32 and 8,523.16

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Solution

The fourth proportional to 11,040.92, 15,207.32 and 8,523.16 is: 11,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.92 : 15,207.32 = 8,523.16 : x
  2. Step 2: Convert to fraction form
    11,040.92/15,207.32 = 8,523.16/x
  3. Step 3: Cross multiply
    11,040.92x = 15,207.32 × 8,523.16
  4. Step 4: Simplify right side
    11,040.92x = 129,614,421.53
  5. Step 5: Solve for x
    x = 129,614,421.53/11,040.92
  6. Step 6: Final answer
    x = 11,739.46

Related Problems

Find fourth proportional to 5,520.46, 7,603.66 and 4,261.58
Half scale
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Double scale
Find fourth proportional to 11,041.92, 15,208.70 and 8,524.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.